Sometimes, a somewhat obscure Linux distribution might be just what you're looking for. Is either CachyOS or Nobara the one?
Sudo lets you run any terminal command as another user — hence "substitute user" — but the default and most common use for it ...
For Linux and MacOS, Fresh is the best of both worlds - a terminal text editor with GUI-like options. I'm all for it.
Learn how to record terminal sessions on Linux using Asciinema and convert them into clean animated GIFs for READMEs and ...